Signal booster with spectrally adjacent bands

ABSTRACT

Technology for a signal booster is disclosed. The signal booster can include a first triplexer. The signal booster can include a second triplexer. The signal booster can include a first direction signal path communicatively coupled between the first triplexer and the second triplexer. The first direction signal path can be configured to amplify and filter first direction signals in one or more first direction bands, and the one or more first direction bands can be spectrally adjacent bands. The second direction signal path can be configured to amplify and filter second direction signals in one or more second direction bands, and the one or more second direction bands can be spectrally adjacent bands.

RELATED APPLICATIONS

The present application claims the benefit of U.S. Provisional PatentApplication No. 62/453,897, filed Feb. 2, 2017 and the benefit of U.S.Provisional Patent Application No. 62/487,936, filed Apr. 20, 2017, theentire specifications of which are hereby incorporated by reference intheir entirety for all purposes.

BACKGROUND

Signal boosters and repeaters can be used to increase the quality ofwireless communication between a wireless device and a wirelesscommunication access point, such as a cell tower. Signal boosters canimprove the quality of the wireless communication by amplifying,filtering, and/or applying other processing techniques to uplink anddownlink signals communicated between the wireless device and thewireless communication access point.

As an example, the signal booster can receive, via an antenna, downlinksignals from the wireless communication access point. The signal boostercan amplify the downlink signal and then provide an amplified downlinksignal to the wireless device. In other words, the signal booster canact as a relay between the wireless device and the wirelesscommunication access point. As a result, the wireless device can receivea stronger signal from the wireless communication access point.Similarly, uplink signals from the wireless device (e.g., telephonecalls and other data) can be directed to the signal booster. The signalbooster can amplify the uplink signals before communicating, via anantenna, the uplink signals to the wireless communication access point.

BRIEF DESCRIPTION OF THE DRAWINGS

Features and advantages of the disclosure will be apparent from thedetailed description which follows, taken in conjunction with theaccompanying drawings, which together illustrate, by way of example,features of the disclosure; and, wherein:

FIG. 1 illustrates a signal booster in communication with a wirelessdevice and a base station in accordance with an example;

FIG. 2 illustrates frequency ranges for a plurality of uplink anddownlink bands in accordance with an example;

FIG. 3 illustrates a signal booster that includes uplink and/or downlinksignal paths in spectrally adjacent bands in accordance with an example;

FIG. 4 illustrates a signal booster in accordance with an example;

FIG. 5 illustrates a signal booster in accordance with an example;

FIG. 6 illustrates a cellular signal booster in accordance with anexample;

FIG. 7 illustrates a signal booster in accordance with an example;

FIG. 8 illustrates a triplexer in accordance with an example;

FIG. 9 illustrates a signal booster in accordance with an example;

FIG. 10 illustrates a signal booster that includes uplink and/ordownlink signal paths in spectrally adjacent bands in accordance with anexample;

FIG. 11 illustrates frequency ranges for a 600 megahertz (MHz) band inaccordance with an example;

FIG. 12 illustrates a signal booster that includes uplink and/ordownlink signal paths in spectrally adjacent bands in accordance with anexample;

FIG. 13 illustrates a signal booster that includes uplink and/ordownlink signal paths in spectrally adjacent bands in accordance with anexample;

FIG. 14 illustrates a signal booster that is operable in a wideband modeor a channelized mode in accordance with an example;

FIG. 15 illustrates a signal booster that is operable in a wideband modeor a channelized mode in accordance with an example; and

FIG. 16 illustrates a wireless device in accordance with an example.

Reference will now be made to the exemplary embodiments illustrated, andspecific language will be used herein to describe the same. It willnevertheless be understood that no limitation of the scope of theinvention is thereby intended.

DETAILED DESCRIPTION

Before the present invention is disclosed and described, it is to beunderstood that this invention is not limited to the particularstructures, process steps, or materials disclosed herein, but isextended to equivalents thereof as would be recognized by thoseordinarily skilled in the relevant arts. It should also be understoodthat terminology employed herein is used for the purpose of describingparticular examples only and is not intended to be limiting. The samereference numerals in different drawings represent the same element.Numbers provided in flow charts and processes are provided for clarityin illustrating steps and operations and do not necessarily indicate aparticular order or sequence.

Example Embodiments

An initial overview of technology embodiments is provided below and thenspecific technology embodiments are described in further detail later.This initial summary is intended to aid readers in understanding thetechnology more quickly but is not intended to identify key features oressential features of the technology nor is it intended to limit thescope of the claimed subject matter.

FIG. 1 illustrates an exemplary signal booster 120 in communication witha wireless device 110 and a base station 130. The signal booster 120 canbe referred to as a repeater. A repeater can be an electronic deviceused to amplify (or boost) signals. The signal booster 120 (alsoreferred to as a cellular signal amplifier) can improve the quality ofwireless communication by amplifying, filtering, and/or applying otherprocessing techniques via a signal amplifier 122 to uplink signalscommunicated from the wireless device 110 to the base station 130 and/ordownlink signals communicated from the base station 130 to the wirelessdevice 110. In other words, the signal booster 120 can amplify or boostuplink signals and/or downlink signals bi-directionally. In one example,the signal booster 120 can be at a fixed location, such as in a home oroffice. Alternatively, the signal booster 120 can be attached to amobile object, such as a vehicle or a wireless device 110.

In one configuration, the signal booster 120 can include an integrateddevice antenna 124 (e.g., an inside antenna or a coupling antenna) andan integrated node antenna 126 (e.g., an outside antenna). Theintegrated node antenna 126 can receive the downlink signal from thebase station 130. The downlink signal can be provided to the signalamplifier 122 via a second coaxial cable 127 or other type of radiofrequency connection operable to communicate radio frequency signals.

The signal amplifier 122 can include one or more cellular signalamplifiers for amplification and filtering. The downlink signal that hasbeen amplified and filtered can be provided to the integrated deviceantenna 124 via a first coaxial cable 125 or other type of radiofrequency connection operable to communicate radio frequency signals.The integrated device antenna 124 can wirelessly communicate thedownlink signal that has been amplified and filtered to the wirelessdevice 110.

Similarly, the integrated device antenna 124 can receive an uplinksignal from the wireless device 110. The uplink signal can be providedto the signal amplifier 122 via the first coaxial cable 125 or othertype of radio frequency connection operable to communicate radiofrequency signals. The signal amplifier 122 can include one or morecellular signal amplifiers for amplification and filtering. The uplinksignal that has been amplified and filtered can be provided to theintegrated node antenna 126 via the second coaxial cable 127 or othertype of radio frequency connection operable to communicate radiofrequency signals. The integrated device antenna 126 can communicate theuplink signal that has been amplified and filtered to the base station130.

In one example, the signal booster 120 can filter the uplink anddownlink signals using any suitable analog or digital filteringtechnology including, but not limited to, surface acoustic wave (SAW)filters, bulk acoustic wave (BAW) filters, film bulk acoustic resonator(FBAR) filters, ceramic filters, waveguide filters or low-temperatureco-fired ceramic (LTCC) filters.

In one example, the signal booster 120 can send uplink signals to a nodeand/or receive downlink signals from the node. The node can comprise awireless wide area network (WWAN) access point (AP), a base station(BS), an evolved Node B (eNB), a baseband unit (BBU), a remote radiohead (RRH), a remote radio equipment (RRE), a relay station (RS), aradio equipment (RE), a remote radio unit (RRU), a central processingmodule (CPM), or another type of WWAN access point.

In one configuration, the signal booster 120 used to amplify the uplinkand/or a downlink signal is a handheld booster. The handheld booster canbe implemented in a sleeve of the wireless device 110. The wirelessdevice sleeve can be attached to the wireless device 110, but can beremoved as needed. In this configuration, the signal booster 120 canautomatically power down or cease amplification when the wireless device110 approaches a particular base station. In other words, the signalbooster 120 can determine to stop performing signal amplification whenthe quality of uplink and/or downlink signals is above a definedthreshold based on a location of the wireless device 110 in relation tothe base station 130.

In one example, the signal booster 120 can include a battery to providepower to various components, such as the signal amplifier 122, theintegrated device antenna 124 and the integrated node antenna 126. Thebattery can also power the wireless device 110 (e.g., phone or tablet).Alternatively, the signal booster 120 can receive power from thewireless device 110.

In one configuration, the signal booster 120 can be a FederalCommunications Commission (FCC)-compatible consumer signal booster. As anon-limiting example, the signal booster 120 can be compatible with FCCPart 20 or 47 Code of Federal Regulations (C.F.R.) Part 20.21 (Mar. 21,2013). In addition, the signal booster 120 can operate on thefrequencies used for the provision of subscriber-based services underparts 22 (Cellular), 24 (Broadband PCS), 27 (AWS-1, 700 MHz Lower A-EBlocks, and 700 MHz Upper C Block), and 90 (Specialized Mobile Radio) of47 C.F.R. The signal booster 120 can be configured to automaticallyself-monitor its operation to ensure compliance with applicable noiseand gain limits. The signal booster 120 can either self-correct or shutdown automatically if the signal booster's operations violate theregulations defined in FCC Part 20.21.

In one configuration, the signal booster 120 can improve the wirelessconnection between the wireless device 110 and the base station 130(e.g., cell tower) or another type of wireless wide area network (WWAN)access point (AP).

The signal booster 120 can boost signals for cellular standards, such asthe Third Generation Partnership Project (3GPP) Long Term Evolution(LTE) Release 8, 9, 10, 11, 12, or 13 standards or Institute ofElectronics and Electrical Engineers (IEEE) 802.16. In oneconfiguration, the signal booster 120 can boost signals for 3GPP LTERelease 13.0.0 (March 2016) or other desired releases. The signalbooster 120 can boost signals from the 3GPP Technical Specification36.101 (Release 12 Jun. 2015) bands or LTE frequency bands. For example,the signal booster 120 can boost signals from the LTE frequency bands:2, 4, 5, 12, 13, 17, and 25. In addition, the signal booster 120 canboost selected frequency bands based on the country or region in whichthe signal booster is used, including any of bands 1-70 or other bands,as disclosed in ETSI TS136 104 V13.5.0 (2016-10).

The number of LTE frequency bands and the level of signal improvementcan vary based on a particular wireless device, cellular node, orlocation. Additional domestic and international frequencies can also beincluded to offer increased functionality. Selected models of the signalbooster 120 can be configured to operate with selected frequency bandsbased on the location of use. In another example, the signal booster 120can automatically sense from the wireless device 110 or base station 130(or GPS, etc.) which frequencies are used, which can be a benefit forinternational travelers.

In one example, the integrated device antenna 124 and the integratednode antenna 126 can be comprised of a single antenna, an antenna array,or have a telescoping form-factor. In another example, the integrateddevice antenna 124 and the integrated node antenna 126 can be amicrochip antenna. An example of a microchip antenna is AMMAL001. In yetanother example, the integrated device antenna 124 and the integratednode antenna 126 can be a printed circuit board (PCB) antenna. Anexample of a PCB antenna is TE 2118310-1.

In one example, the integrated device antenna 124 can receive uplink(UL) signals from the wireless device 110 and transmit DL signals to thewireless device 110 using a single antenna. Alternatively, theintegrated device antenna 124 can receive UL signals from the wirelessdevice 110 using a dedicated UL antenna, and the integrated deviceantenna 124 can transmit DL signals to the wireless device 110 using adedicated DL antenna.

In one example, the integrated device antenna 124 can communicate withthe wireless device 110 using near field communication. Alternatively,the integrated device antenna 124 can communicate with the wirelessdevice 110 using far field communication.

In one example, the integrated node antenna 126 can receive downlink(DL) signals from the base station 130 and transmit uplink (UL) signalsto the base station 130 via a single antenna. Alternatively, theintegrated node antenna 126 can receive DL signals from the base station130 using a dedicated DL antenna, and the integrated node antenna 126can transmit UL signals to the base station 130 using a dedicated ULantenna.

In one configuration, multiple signal boosters can be used to amplify ULand DL signals. For example, a first signal booster can be used toamplify UL signals and a second signal booster can be used to amplify DLsignals. In addition, different signal boosters can be used to amplifydifferent frequency ranges.

In one configuration, the signal booster 120 can be configured toidentify when the wireless device 110 receives a relatively strongdownlink signal. An example of a strong downlink signal can be adownlink signal with a signal strength greater than approximately −80dBm. The signal booster 120 can be configured to automatically turn offselected features, such as amplification, to conserve battery life. Whenthe signal booster 120 senses that the wireless device 110 is receivinga relatively weak downlink signal, the integrated booster can beconfigured to provide amplification of the downlink signal. An exampleof a weak downlink signal can be a downlink signal with a signalstrength less than −80 dBm.

In one example, the signal booster 120 can also include one or more of:a waterproof casing, a shock absorbent casing, a flip-cover, a wallet,or extra memory storage for the wireless device. In one example, extramemory storage can be achieved with a direct connection between thesignal booster 120 and the wireless device 110. In another example,Near-Field Communications (NFC), Bluetooth v4.0, Bluetooth Low Energy,Bluetooth v4.1, Bluetooth v4.2, Bluetooth 5, Ultra High Frequency (UHF),3GPP LTE, Institute of Electronics and Electrical Engineers (IEEE)802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, orIEEE 802.11ad can be used to couple the signal booster 120 with thewireless device 110 to enable data from the wireless device 110 to becommunicated to and stored in the extra memory storage that isintegrated in the signal booster 120. Alternatively, a connector can beused to connect the wireless device 110 to the extra memory storage.

In one example, the signal booster 120 can include photovoltaic cells orsolar panels as a technique of charging the integrated battery and/or abattery of the wireless device 110. In another example, the signalbooster 120 can be configured to communicate directly with otherwireless devices with signal boosters. In one example, the integratednode antenna 126 can communicate over Very High Frequency (VHF)communications directly with integrated node antennas of other signalboosters. The signal booster 120 can be configured to communicate withthe wireless device 110 through a direct connection, Near-FieldCommunications (NFC), Bluetooth v4.0, Bluetooth Low Energy, Bluetoothv4.1, Bluetooth v4.2, Ultra High Frequency (UHF), 3GPP LTE, Institute ofElectronics and Electrical Engineers (IEEE) 802.11a, IEEE 802.11b, IEEE802.11g, IEEE 802.11n, IEEE 802.11ac, IEEE 802.11ad, a TV White SpaceBand (TVWS), or any other industrial, scientific and medical (ISM) radioband. Examples of such ISM bands include 2.4 GHz, 3.6 GHz, 4.9 GHz, 5GHz, or 5.9 GHz. This configuration can allow data to pass at high ratesbetween multiple wireless devices with signal boosters. Thisconfiguration can also allow users to send text messages, initiate phonecalls, and engage in video communications between wireless devices withsignal boosters. In one example, the integrated node antenna 126 can beconfigured to couple to the wireless device 110. In other words,communications between the integrated node antenna 126 and the wirelessdevice 110 can bypass the integrated booster.

In another example, a separate VHF node antenna can be configured tocommunicate over VHF communications directly with separate VHF nodeantennas of other signal boosters. This configuration can allow theintegrated node antenna 126 to be used for simultaneous cellularcommunications. The separate VHF node antenna can be configured tocommunicate with the wireless device 110 through a direct connection,Near-Field Communications (NFC), Bluetooth v4.0, Bluetooth Low Energy,Bluetooth v4.1, Bluetooth v4.2, Ultra High Frequency (UHF), 3GPP LTE,Institute of Electronics and Electrical Engineers (IEEE) 802.11a, IEEE802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.11ac, IEEE 802.11ad, a TVWhite Space Band (TVWS), or any other industrial, scientific and medical(ISM) radio band.

In one configuration, the signal booster 120 can be configured forsatellite communication. In one example, the integrated node antenna 126can be configured to act as a satellite communication antenna. Inanother example, a separate node antenna can be used for satellitecommunications. The signal booster 120 can extend the range of coverageof the wireless device 110 configured for satellite communication. Theintegrated node antenna 126 can receive downlink signals from satellitecommunications for the wireless device 110. The signal booster 120 canfilter and amplify the downlink signals from the satellitecommunication. In another example, during satellite communications, thewireless device 110 can be configured to couple to the signal booster120 via a direct connection or an ISM radio band. Examples of such ISMbands include 2.4 GHz, 3.6 GHz, 4.9 GHz, 5 GHz, or 5.9 GHz.

FIG. 2 illustrates exemplary frequency ranges for a plurality of uplinkand downlink bands. The frequency ranges can be measured in megahertz(MHz). The uplink bands can include band 12 (B12), band 13 (B13) andband 14 (B14). The downlink bands can include band 12 (B12), band 13(B13) and band 14 (B14). As shown, B12 can correspond to a frequencyrange of 699 MHz to 716 MHz in an uplink. B12 can correspond to afrequency range of 729 MHz to 746 MHz in a downlink, B13 can correspondto a frequency range of 746 MHz to 756 MHz in the downlink, and B14 cancorrespond to a frequency range of 758 MHz to 768 MHz in the downlink.B12, B13 and B14 can be spectrally adjacent bands in the downlink. Inaddition, B13 can correspond to a frequency range of 777 MHz to 787 MHzin the uplink, and B14 can correspond to a frequency range of 788 MHz to798 MHz in the uplink. B13 and B14 can be spectrally adjacent bands inthe downlink.

FIG. 3 illustrates an exemplary signal booster 300. The signal booster300 can include one or more uplink signal paths for selected bands, andthe signal booster 300 can include one or more downlink signal paths forselected bands. The uplink signal paths can include one or moreamplifiers and band pass filters to amplify uplink signals. Similarly,the downlink signal paths can include one or more amplifiers and bandpass filters to amplify downlink signals.

In the example shown in FIG. 3, the signal booster 300 can have a firstuplink signal path 330 for band 12 (B12) and a second uplink signal path340 for B13 and B14. In uplink, B12 corresponds to a frequency range of699 megahertz (MHz) to 716 MHz, B13 corresponds to a frequency range of777 MHz to 787 MHz, and B14 corresponds to a frequency range of 788 MHzto 798 MHz. In the uplink, B13 and B14 can be spectrally adjacent bands.In addition, in this example, the signal booster 300 can have a downlinksignal path 350 for B12, B13 and B14. In other words, the downlinksignal path 350 can be a combined downlink signal path for B12, B13 andB14. In downlink, B12 corresponds to a frequency range of 729 MHz to 746MHz, B13 corresponds to a frequency range of 746 MHz to 756 MHz, and B14corresponds to a frequency range of 758 MHz to 768 MHz. In the downlink,B12, B13 and B14 are all spectrally adjacent to each other. Even thoughthere is a 2 MHz gap between an end of B13 DL and a start of B14 DL(e.g., 756 MHz and 758 MHz), B13 DL and B14 DL can be consideredspectrally adjacent to each other since an RF filter may be unable toroll-off quickly enough to separate the two bands.

In one example, the signal booster 300 can receive uplink signals from amobile device (not shown) via an inside antenna coupled to the signalbooster 300. An uplink signal can pass through a first triplexer 310 (orfirst multiband filter), and then the uplink signal can be provided tothe first uplink signal path 330 for B12 or the second uplink signalpath 340 for B13 and B14. The first and second uplink signal paths 330,340 can perform amplification and filtering of the uplink signal. Thefirst and second uplink signal paths 330, 340 can each include a lownoise amplifier (LNA) and a power amplifier (PA). The uplink signal canbe provided to a second triplexer 320 (or second multiband filter), andthen the uplink signal can be provided to a base station (not shown) viaan outside antenna coupled to the signal booster 300.

In another example, the signal booster 300 can receive downlink signalsfrom the base station via the outside antenna. A downlink signal canpass through the second triplexer 320 (or second multiband filter), andthen the downlink signal can be provided to the combined downlink signalpath 350 for B12, B13 and B14. The combined downlink signal path 350 canperform amplification and filtering of the downlink signal. The combineddownlink signal path 350 can include a low noise amplifier (LNA) and apower amplifier (PA). The downlink signal can be provided to the firsttriplexer 310 (or first multiband filter), and then the downlink signalcan be provided to the mobile device via the inside antenna.

In one configuration, the signal booster 300 can include a controller360. Generally speaking, the controller 360 can be configured to performnetwork protection for the signal booster 300. The controller 360 canperform network protection in accordance with Part 20 of the FederalCommunications Commission (FCC) Consumer Booster Rules. The FCC ConsumerBooster Rules necessitate that uplink signal paths and downlink signalare to work together for network protection. Network protection can beperformed in order to protect a cellular network from overload or noisefloor increase. The controller 360 can perform network protection byadjusting a gain or noise power for each band in the uplink transmissionpaths 330, 340 based on control information from each band in thedownlink transmission paths 350. The control information from each bandin the downlink transmission paths 350 can include a received signalstrength indication (RSSI) associated with downlink received signals. Inother words, based on the RSSI of the downlink received signalstraveling on the downlink transmission paths 350, the controller 360 canadjust (i.e., increase or decrease) the gain or noise power for theuplink transmission paths 330, 340. By adjusting the gain or noise floorwhen performing the network protection, the signal booster 300 canprevent the network (e.g., base stations) from becoming overloaded withuplink signals from the signal booster 300 that exceed a definedthreshold.

In the example shown in FIG. 3, the controller 360 can separately detectcontrol information (e.g., RSSI) for downlink received signals withrespect to B12, B13 and B14. In other words, the signal booster 300 candetect control information that pertains only to downlink receivedsignals for B12, the signal booster 300 can detect control informationthat pertains only to downlink received signals for B13, and the signalbooster 300 can detect control information that pertains only todownlink received signals for B14. The controller 360 can adjust theuplink gain or noise floor for B12 (i.e., the first uplink signal path330) based only on the control information for the downlink receivedsignals on B12. The controller 360 can adjust the uplink gain or noisefloor for B13 and B14 (i.e., the second uplink signal path 340) basedonly on the control information for the downlink received signals on B13or B14. In other words, the uplink gain or noise power for B12 (i.e.,the first uplink signal path 330) can be controlled independent of theuplink gain or noise power for B13 and B14 (i.e., the second uplinksignal path 340).

More specifically, as shown in FIG. 3, the signal booster 300 caninclude a switchable B12 downlink band pass filter, a switchable B13downlink bandpass filter, a switchable B14 downlink bandpass filter, anda signal detector. The signal detector can be communicatively coupled tothe switchable B12 downlink band pass filter, the switchable B13downlink band pass filter and the switchable B14 downlink band passfilter. The B12, B13 and B14 downlink bandpass filters can be switchedin and out, such that downlink received signals for B12, B13 or B14 canbe provided to the signal detector. The signal detector can be a logdetector (e.g., a diode), and the signal detector can detect the controlinformation (e.g., RSSI) associated with the downlink received signalsfor B12, B13 or B14. In other words, the switchable B12, B13 and B14downlink band pass filters can enable the signal detector to separatelydetect the control information for downlink received signals for B12,B13 and B14. The signal detector can provide the control information tothe controller 360. Based only on the control information for downlinkreceived signals for B12, the controller 360 can adjust the uplink gainor noise floor for B12 (i.e., the first uplink signal path 330).Similarly, based only on the control information for downlink receivedsignals for B13 or B14, the controller 360 can adjust the uplink gain ornoise floor for B13 and B14 (i.e., the second uplink signal path 340).

In general, using the signal detector, the controller 360 can detectsingle downlink bands while multiple downlink bands are passing througha common downlink signal path. With respect to the specific exampleshown in FIG. 3, the controller 360 can perform independent detection ofcontrol information for B12, B13 and B14, even though the signal booster300 has a combined downlink signal path for B12, B13 and B14.

In an alternative configuration, the signal booster 300 can include afirst signal detector, a second signal detector and a third signaldetector. The first signal detector can detect control information(e.g., RSSI) associated with a received downlink signal for B12. Thesecond signal detector can detect control information (e.g., RSSI)associated with a received downlink signal for B13. The third signaldetector can detect control information (e.g., RSSI) associated with areceived downlink signal for B14. Therefore, in this configuration,separate signal detectors can be utilized to detect the controlinformation for the multiple downlink bands.

In one configuration, the downlink signal path 350 can include a passthrough signal path to the signal detector. The pass through signal pathcan bypass the switchable B12, B13 and B14 downlink band pass filters.The signal detector can measure a signal power level for the passthrough signal path. The signal power level can be utilized to performautomatic gain control (AGC) and to maintain a linearity of a downlinksignal. Alternatively, a signal power level for each of the switchableB12, B13 and B14 downlink band pass filters can be measured and added tocalculate a total signal power level.

In one configuration, the first triplexer 310 can include a first commonport communicatively coupled to the inside antenna. The first triplexer310 can include a first port that is communicatively coupled to thefirst uplink signal path 330 for B12. The first triplexer 310 caninclude a second port that is communicatively coupled to the seconduplink signal path 340 for B13 and B14. The first triplexer 310 caninclude a third port that is communicatively coupled to the combineddownlink signal path 350 for B12, B13 and B14. Similarly, the secondtriplexer 320 can include a second common port communicatively coupledto the outside antenna. The second triplexer 320 can include a firstport that is communicatively coupled to the first uplink signal path 330for B12. The second triplexer 320 can include a second port that iscommunicatively coupled to the second uplink signal path 340 for B13 andB14. The second triplexer 320 can include a third port that iscommunicatively coupled to the combined downlink signal path 350 forB12, B13 and B14.

In one configuration, the first triplexer 310 and the second triplexer320 can include separate filters for B12 UL, B13 UL and/or B14 UL.Similarly, the first triplexer 310 and the second triplexer 320 caninclude separate filters for B12 DL, B13 DL and/or B14 DL. The filterscan filter UL or DL signals, respectively.

In one configuration, the signal booster 300 can include a firstmultiband filter and a second multiband filter. The first and secondmultiband filters can be single-input single-output (SISO) multibandfilters or double-input single-output (DISO) multiband filters. In thisconfiguration, the first multiband filter and the second multibandfilter can replace the first triplexer 310 and the second triplexer 320,respectively. The first multiband filter can include a first uplink portand a first downlink port. The second multiband filter can include asecond uplink port and a second downlink port. One or more uplink signalpaths 330, 340 can be communicatively coupled between the first uplinkport in the first multiband filter and the second uplink port in thesecond multiband filter. Similarly, one or more downlink signal paths350 can be communicatively coupled between the first downlink port inthe first multiband filter and the second downlink port in the secondmultiband filter. In this configuration, each of the first and secondmultiband filters can include a single downlink port and a single uplinkport.

FIG. 4 illustrates an exemplary signal booster 400. The signal booster400 can include a first triplexer 410. The signal booster 400 caninclude a second triplexer 420. The signal booster 400 can include afirst uplink signal path 430 communicatively coupled between the firsttriplexer 410 and the second triplexer 420. The first uplink signal path430 can include one or more amplifiers and one or more band passfilters, and the first signal path 430 can be configured to amplify andfilter uplink signals in a first uplink band. The signal booster 400 caninclude a second uplink signal path 440 communicatively coupled betweenthe first triplexer 410 and the second triplexer 420. The second uplinksignal path 440 can include one or more amplifiers and one or more bandpass filters, and the second signal path 440 can be configured toamplify and filter uplink signals in one or more of a second uplink bandor a third uplink band that is spectrally adjacent to the second uplinkband. The signal booster 400 can include a downlink signal path 450communicatively coupled between the first triplexer 410 and the secondtriplexer 420. The downlink signal path 450 can include one or moreamplifiers and one or more band pass filters configured to amplify andfilter downlink signals in one or more of a first downlink band, asecond downlink band or a third downlink band, and the first downlinkband, the second downlink band and the third downlink band can bespectrally adjacent bands. A signal detector can also be used to detectthe first, second, or third downlink bands using switchable bandpassfilters to pass selected bands to the signal detector. In oneconfiguration, the downlink signal path can include a pass throughsignal path to the signal detector.

FIG. 5 illustrates an exemplary signal booster 500. The signal booster500 can include a first triplexer 510. The signal booster 500 caninclude a second triplexer 520. The signal booster 500 can include adownlink signal path 530 communicatively coupled between the firsttriplexer 510 and the second triplexer 520. The downlink signal path 530can include one or more amplifiers and one or more band pass filtersconfigured to amplify and filter downlink signals in one or more of afirst downlink band, a second downlink band or a third downlink band,and the first downlink band, the second downlink band and the thirddownlink band can be spectrally adjacent bands.

FIG. 6 illustrates an exemplary cellular signal booster 600. Thecellular signal booster 600 can include a downlink cellular signal path630 configured to amplify and filter a downlink cellular signal receivedin a first downlink band, a second downlink band or a third downlinkband, and the first downlink band, the second downlink band and thethird downlink band can be spectrally adjacent bands. The cellularsignal booster 600 can include a controller 640 operable to performnetwork protection by adjusting an uplink gain or noise power for afirst uplink band in a first uplink cellular signal path, or for asecond uplink band and a third uplink band in a second uplink cellularsignal path. The second uplink band can be spectrally adjacent to thethird uplink band, and the uplink gain or noise power can be adjusted inthe first uplink cellular path or the second uplink cellular path usingcontrol information associated with the downlink cellular signalreceived in one or more of the first downlink band, the second downlinkband or the third downlink band.

FIG. 7 illustrates an exemplary signal booster 700. The signal booster700 can include a first triplexer 710. The signal booster 700 caninclude a second triplexer 720. The signal booster 700 can include afirst direction signal path 730 communicatively coupled between thefirst triplexer 710 and the second triplexer 720. The first directionsignal path 730 can include one or more amplifiers and one or more bandpass filters, and the first direction signal path 730 can be configuredto amplify and filter first direction signals in one or more firstdirection bands, and the one or more first direction bands can bespectrally adjacent bands. The signal booster 700 can include a seconddirection signal path 740 communicatively coupled between the firsttriplexer 710 and the second triplexer 720. The second direction signalpath 740 can include one or more amplifiers and one or more band passfilters configured to amplify and filter second direction signals in oneor more second direction bands, and the one or more second directionbands can be spectrally adjacent bands.

FIG. 8 illustrates an exemplary triplexer 800 in a signal booster. Thetriplexer 800 can include one or more first direction filters 810configured to filter first direction signals in one or more firstdirection bands, and the one or more first direction bands can bespectrally adjacent bands. The triplexer 800 can include one or moresecond direction filters 820 configured to filter second directionsignals in one or more second direction bands, and the one or moresecond direction bands can be spectrally adjacent bands.

FIG. 9 illustrates an exemplary signal booster 900. The signal booster900 can include a first multiband filter 910 that includes a firstfirst-direction port and a first second-direction port. The signalbooster 900 can include a second multiband filter 920 that includes asecond first-direction port and a second second-direction port. Thefirst multiband filter 910 and the second multiband filter 920 caninclude four or more filters. The four or more filters can include firstdirection filters and/or second direction filters. Each signal path canbe associated with a selected first direction filter or second directionfilter of the four or more filters. The signal booster 900 can includeone or more first direction signal paths 930 communicatively coupledbetween the first first-direction port in the first multiband filter 910and the second first-direction port in the second multiband filter 920.The signal booster 900 can include one or more second direction signalpaths 940 communicatively coupled between the first second-directionport in the first multiband filter 910 and the second second-directionport in the second multiband filter 920.

FIG. 10 illustrates an exemplary signal booster 1000 that includesuplink and/or downlink signal paths in spectrally adjacent bands. Thesignal booster 1000 can include a first multiband filter 1010 and asecond multiband filter 1020. The first multiband filter 1010 can becommunicatively coupled to an inside antenna and the second multibandfilter 1020 can be communicatively coupled to an outside antenna. Thesignal booster 1000 can include a first uplink signal path 1030 and asecond uplink signal path 1040 communicatively coupled between the firstmultiband filter 1010 and the second multiband filter 1020. The firstuplink signal path 1030 and the second uplink signal path 1040 can eachinclude one or more amplifiers and one or more band pass filters.Similarly, the signal booster 1000 can include a first downlink signalpath 1050 and a second downlink signal path 1060 communicatively coupledbetween the first multiband filter 1010 and the second multiband filter1020. The first downlink signal path 1050 and the second downlink signalpath 1060 can each include one or more amplifiers and one or more bandpass filters. Each signal path (downlink and uplink) can include asignal detector to detect control information associated with signalstransmitted on the signal path. In addition, the signal booster 900 canemploy down-converting, and then either an analog intermediate frequency(IF) filter or digital filter.

In this example, the first uplink signal path 1030 can be for band 12(B12) and the 600 MHz uplink frequency range. In other words, the firstuplink signal path 1030 can be a combined signal path for B12 and 600MHz. In uplink, B12 corresponds to a frequency range of 699 megahertz(MHz) to 716 MHz, so B12 and the 600 MHz frequency range are spectrallyadjacent. In this example, the second uplink signal path 1040 can be forB12. In uplink, B13 corresponds to a frequency range of 777 MHz to 787MHz. In this example, the first downlink signal path 1050 can be for B12and B13. In other words, the first downlink signal path 1050 can be acombined signal path for B12 and B13. In downlink, B12 corresponds to afrequency range of 729 MHz to 746 MHz and B13 corresponds to a frequencyrange of 746 MHz to 756 MHz, so B12 and B13 are spectrally adjacent toeach other in the downlink. Alternatively, the first downlink signalpath 1050 can be a combined signal path for B12, B13 and B14, which areall spectrally adjacent to each other in the downlink. In this example,the second downlink signal path 1060 can be for the 600 MHz downlinkfrequency range.

In an alternative configuration, first uplink signal path 1030 can befor B12 and the 600 MHz uplink frequency range, and the second uplinksignal path 1040 can be for B13 and a band 14 (B14). In uplink, B14corresponds to a frequency range of 788 MHz to 798 MHz. In addition, thefirst downlink signal path 1050 can be for B12, B13 and B14, and thesecond downlink signal path 1060 can be for the 600 MHz downlinkfrequency range. In downlink B14 corresponds to a frequency range of 758MHz to 768 MHz.

FIG. 11 exemplary frequency ranges for a 600 megahertz (MHz) frequencyband. As shown, a band 12 (B12) uplink (UL) band corresponds to afrequency range of 699 MHz to 716 MHz. A 600 MHz UL band can bespectrally adjacent to the B12 UL band. The 600 MHz UL band can rangefrom a defined frequency range (e.g., 6XX MHz to 6XX MHz). A 600 MHzdownlink (DL) band can have a lower frequency than the 600 MHz UL band,and the 600 MHz DL band and the 600 MHz UL band can be separated by aguard band (GB). The 600 MHz DL band can range from a defined frequencyrange (e.g., 6XX MHz to 6XX MHz). In addition, a radio astronomy service(RAS) can correspond to a frequency range of 608 MHz to 614 MHz. In oneexample, 84 MHz of the 600 MHz frequency band can be utilized for uplinkand downlink traffic. Therefore, 7 paired blocks and the RAS may not beutilized for uplink and downlink traffic in the 600 MHz frequency band.

FIG. 12 illustrates an exemplary signal booster 1200 that includesuplink and/or downlink signal paths in spectrally adjacent bands. Thesignal booster 1200 can include a first multiband filter 1210 (e.g., afirst triplexer) and a second multiband filter 1220 (e.g., a secondtriplexer). The first multiband filter 1210 can be communicativelycoupled to an inside antenna and the second multiband filter 1220 can becommunicatively coupled to an outside antenna. The signal booster 1200can include a first uplink signal path 1230 and a second uplink signalpath 1240 communicatively coupled between the first multiband filter1210 and the second multiband filter 1220. The first uplink signal path1230 and the second uplink signal path 1240 can each include one or moreamplifiers and one or more band pass filters. In addition, the signalbooster 1200 can include a combined downlink signal path 1250communicatively coupled between the first multiband filter 1210 and thesecond multiband filter 1220. The combined downlink signal path 1250 caninclude one or more amplifiers and one or more band pass filters.

In this example, the first uplink signal path 1230 can be for B12 andthe second uplink signal path 1240 can be for B13. In this example, thecombined downlink signal path 1250 can be for B12 and B13.

In one example, the combined downlink signal path 1250 can include aswitchable B12 downlink band pass filter, a switchable B13 downlinkbandpass filter, a switchable B12/B13 downlink bandpass filter, and asignal detector. The signal detector can be communicatively coupled tothe switchable B12 downlink band pass filter, the switchable B13downlink band pass filter and the switchable B12/B13 downlink band passfilter. The B12, B13 and B12/B13 downlink bandpass filters can beswitched in and out, such that downlink received signals for B12, B13 orB12/B13 can be provided to the signal detector. The signal detector canbe a log detector (e.g., a diode), and the signal detector can detectthe control information (e.g., RSSI) associated with the downlinkreceived signals for B12, B13 or B12/B13. In other words, the switchableB12, B13 and B12/B13 downlink band pass filters can enable the signaldetector to separately detect the control information for downlinkreceived signals for B12, B13 and B12/B13.

In one example, the signal booster 1200 can operate in a wideband modeor a single-band mode (e.g., only one of B12 or B13). For example, toinitiate a single-band mode, a selected uplink power amplifier (PA) canbe turned off and a selected downlink bandpass filter (BPF) can beswitched on. As a specific example, a B13 UL PA can be turned off and aB12 DL BPF can be switched on. For the wideband mode, a wideband BPF fordownlink can be switched in and both UL Pas can be turned off.

FIG. 13 illustrates an exemplary signal booster 1300 that includesuplink and/or downlink signal paths in spectrally adjacent bands. Thesignal booster 1300 can include a first multiband filter 1310 (e.g., afirst triplexer) and a second multiband filter 1320 (e.g., a secondtriplexer). The first multiband filter 1310 can be communicativelycoupled to an inside antenna and the second multiband filter 1320 can becommunicatively coupled to an outside antenna. The signal booster 1300can include a first uplink signal path 1330 and a second uplink signalpath 1340 communicatively coupled between the first multiband filter1310 and the second multiband filter 1320. The first uplink signal path1330 and the second uplink signal path 1340 can each include one or moreamplifiers and one or more band pass filters. In addition, the signalbooster 1300 can include a combined downlink signal path 1350communicatively coupled between the first multiband filter 1310 and thesecond multiband filter 1320. The combined downlink signal path 1350 caninclude one or more amplifiers and one or more band pass filters.

In this example, the first uplink signal path 1330 can be for B12 andB17 and the second uplink signal path 1340 can be for B13. In theuplink, B12 corresponds to a frequency range of 699 MHz to 716 MHz andB17 corresponds to a frequency range of 704 MHz to 716 MHz. In thisexample, the combined downlink signal path 1350 can be for B12 and B13and B17. In downlink, B12 corresponds to a frequency range of 729 MHz to746 MHz, B13 corresponds to a frequency range of 746 MHz to 756 MHz andB17 corresponds to a frequency range of 734 to 746 MHz. Therefore, thesignal booster 1300 can operate in a B12/B13 mode or a B17/B13 mode.

In one example, the first uplink signal path 1330 can include aswitchable B12 uplink band pass filter and a switchable B17 uplinkbandpass filter. In another example, the combined downlink signal path750 can include a switchable B12/B13 downlink band pass filter, aswitchable B17/B13 downlink bandpass filter, and a signal detector. Thesignal detector can be communicatively coupled to the switchable B12/B13downlink band pass filter and the switchable B17/B13 downlink band passfilter. The B12/B13 and B17/B13 downlink bandpass filters can beswitched in and out, such that downlink received signals for B12/B13 orB17/B13 can be provided to the signal detector. The signal detector canbe a log detector (e.g., a diode), and the signal detector can detectthe control information (e.g., RSSI) associated with the downlinkreceived signals for B12/B13 or B17/B13. In other words, the switchableB12/B13 and B17/B13 downlink band pass filters can enable the signaldetector to separately detect the control information for downlinkreceived signals for B12/B13 and B17/B13.

In one configuration, the first uplink signal path 1330 and the seconduplink signal path 1340 can be controlled independently of the combineddownlink signal path 1350, which can provide additional flexibility innetwork protections and mitigate near-far problems.

FIG. 14 illustrates an exemplary signal booster that is operable in awideband mode or a channelized mode. The signal booster 1400 can includea first multiband filter 1410 (e.g., a first triplexer) and a secondmultiband filter 1420 (e.g., a second triplexer). The first multibandfilter 1410 can be communicatively coupled to an inside antenna and thesecond multiband filter 1420 can be communicatively coupled to anoutside antenna. The signal booster 1400 can include a first uplinksignal path 1430 and a second uplink signal path 1440 communicativelycoupled between the first multiband filter 1410 and the second multibandfilter 1420. The first uplink signal path 1430 and the second uplinksignal path 1440 can each include one or more amplifiers and one or moreband pass filters. In addition, the signal booster 1400 can include acombined downlink signal path 1450 communicatively coupled between thefirst multiband filter 1410 and the second multiband filter 1420. Thecombined downlink signal path 1450 can include one or more amplifiersand one or more band pass filters.

In this example, the first uplink signal path 1430 can be for B12 andthe second uplink signal path 1440 can be for B13. In this example, thecombined downlink signal path 1450 can be for B12 and B13.

In one example, the first uplink signal path 1430 can include aswitchable B12 uplink band pass filter and a switchable B12 uplinkchannelized bandpass filter. The switchable B12 uplink band pass filtercan be a wideband B12 uplink filter (i.e., a wideband filter that passessignals in the entire B12 uplink band), whereas the switchable B12uplink channelized bandpass filter can be a channelized B12 uplinkfilter (i.e., a channelized filter that only passes signals in a portionof the B12 uplink band). Similarly, the second uplink signal path 1440can include a switchable B13 uplink band pass filter and a switchableB13 uplink channelized bandpass filter.

In one example, the combined downlink signal path 1450 can include aswitchable B12/B13 downlink band pass filter (i.e., a wideband filterthat passes signals in the entire B12/B13 downlink band), a switchableB12 downlink channelized bandpass filter (a channelized filter that onlypasses signals in a portion of the B12 downlink band), and a B13downlink channelized bandpass filter (a channelized filter that onlypasses signals in a portion of the B13 downlink band). The combineddownlink signal path 1450 can include a splitter that provides signalsto the switchable B12/B13 downlink band pass filter or the switchableB12 downlink channelized bandpass filter, or to the B13 downlinkchannelized bandpass filter. In addition, the combined downlink signalpath 1450 can include signal detector(s) that detect control information(e.g., RSSI) associated with the downlink received signals for B12/B13,a channelized B12 or a channelized B13, respectively.

In one example, the signal booster 1400 can operate in a wideband modeor a parallel channelized mode, in which B12 UL and B13 UL can beadjusted separately. In the wideband mode, a wideband BPF for UL and DLcan be switched in (i.e., the B12 UL BPF, the B13 UL BPF and the B12/13DL BPF can be switched in), and in the DL, a B13 DL channelized BPF canbe disabled. In the parallel channelized mode, a channelized BPF for ULand DL can be switched in (i.e., the B12 UL channelized BPF, the B13 ULchannelized BPF, and the B12 DL channelized BPF can be switched in, andin the DL, the B13 DL channelized BPF can be enabled. In anotherexample, B12 and B13 in the uplink can be wideband, and the B12 or B13BPFs can be switched between each other in the downlink, which canresult in the passed band being full but blocks the other band.

FIG. 15 illustrates an exemplary signal booster that is operable in awideband mode or a channelized mode. The signal booster 1500 can includea first multiband filter 1510 (e.g., a first duplexer) and a secondmultiband filter 1520 (e.g., a second duplexer). The first multibandfilter 1510 can be communicatively coupled to an inside antenna and thesecond multiband filter 1520 can be communicatively coupled to anoutside antenna. The signal booster 1500 can include an uplink signalpath 1530 and a downlink signal path 1540 communicatively coupledbetween the first multiband filter 1510 and the second multiband filter1520. The uplink signal path 1530 and the downlink signal path 1540 caneach include one or more amplifiers and one or more band pass filters.

In this example, the uplink signal path 1530 can be for B5 and thedownlink signal path 1540 can be for B5. In the uplink, B5 correspondsto a frequency range of 824 MHz to 849 MHz, and in the downlink, B5corresponds to a frequency range of 869 MHz to 894 MHz.

In one example, the uplink signal path 1530 can include a switchable B5uplink band pass filter (i.e., a wideband filter that passes signals inthe entire B5 uplink band), a switchable B5 uplink channelized bandpassfilter (a channelized filter that only passes signals in a first portionof the B5 uplink band, which corresponds to Channel A), and a B5 uplinkchannelized bandpass filter (a channelized filter that only passessignals in a first second of the B5 uplink band, which corresponds toChannel B). The uplink signal path 1530 can include a splitter thatprovides signals to the switchable B5 uplink band pass filter or theswitchable B5 uplink channelized bandpass filter corresponding toChannel A, or to the B5 uplink channelized bandpass filter correspondingto Channel B.

In one example, the downlink signal path 1540 can include a switchableB5 downlink band pass filter (i.e., a wideband filter that passessignals in the entire B5 downlink band), a switchable B5 downlinkchannelized bandpass filter (a channelized filter that only passessignals in a first portion of the B5 downlink band, which corresponds toChannel A), and a B5 downlink channelized bandpass filter (a channelizedfilter that only passes signals in a first second of the B5 downlinkband, which corresponds to Channel B). The downlink signal path 1540 caninclude a splitter that provides signals to the switchable B5 downlinkband pass filter or the switchable B5 downlink channelized bandpassfilter corresponding to Channel A, or to the B5 downlink channelizedbandpass filter corresponding to Channel B. In addition, the downlinksignal path 1540 can include signal detector(s) that detect controlinformation (e.g., RSSI) associated with the downlink received signalsfor Channel A of B5 or Channel B of B5, respectively.

In one example, the signal booster 1500 can operate in a wideband mode(full B5) or a parallel channelized mode, in which Channel A of B5 andChannel B of B5 in the uplink can be adjusted separately. In thewideband mode, a wideband BPF for UL and DL can be switched in (i.e.,the B5 UL BPF and the B5 DL BPF), and B5 Channel B BPFs for UL and DLcan be disabled. In the parallel channelized mode, B5 Channel A BPFs forUL and DL can be switched in (i.e., the B5 UL Channel A BPF and the B5DL Channel A BPF can be switched in), and the B5 Channel B BPFs for ULand DL can be enabled (i.e., the B5 UL Channel B BPF and the B5 DLChannel B BPF can be enabled). In another example, single pole doublethrow (SPDT) switches can be utilized to maintain impedance matching tosplitter(s) in the uplink signal path 1530 and/or the downlink signalpath 1540 when any of Enable #1-4 are disabled.

FIG. 16 provides an example illustration of the wireless device, such asa user equipment (UE), a mobile station (MS), a mobile communicationdevice, a tablet, a handset, a wireless transceiver coupled to aprocessor, or other type of wireless device. The wireless device caninclude one or more antennas configured to communicate with a node ortransmission station, such as an access point (AP), a base station (BS),an evolved Node B (eNB), a baseband unit (BBU), a remote radio head(RRH), a remote radio equipment (RRE), a relay station (RS), a radioequipment (RE), a remote radio unit (RRU), a central processing module(CPM), or other type of wireless wide area network (WWAN) access point.The wireless device can communicate using separate antennas for eachwireless communication standard or shared antennas for multiple wirelesscommunication standards. The wireless device can communicate in awireless local area network (WLAN), a wireless personal area network(WPAN), and/or a WWAN.

FIG. 16 also provides an illustration of a microphone and one or morespeakers that can be used for audio input and output from the wirelessdevice. The display screen can be a liquid crystal display (LCD) screen,or other type of display screen such as an organic light emitting diode(OLED) display. The display screen can be configured as a touch screen.The touch screen can use capacitive, resistive, or another type of touchscreen technology. An application processor and a graphics processor canbe coupled to internal memory to provide processing and displaycapabilities. A non-volatile memory port can also be used to providedata input/output options to a user. The non-volatile memory port canalso be used to expand the memory capabilities of the wireless device. Akeyboard can be with the wireless device or wirelessly connected to thewireless device to provide additional user input. A virtual keyboard canalso be provided using the touch screen.

EXAMPLES

The following examples pertain to specific technology embodiments andpoint out specific features, elements, or actions that can be used orotherwise combined in achieving such embodiments.

Example 1 includes a signal booster, comprising: a first triplexer; asecond triplexer; a first uplink signal path communicatively coupledbetween the first triplexer and the second triplexer, the first uplinksignal path including one or more amplifiers and one or more band passfilters, and the first signal path is configured to amplify and filteruplink signals in a first uplink band; a second uplink signal pathcommunicatively coupled between the first triplexer and the secondtriplexer, the second uplink signal path including one or moreamplifiers and one or more band pass filters, and the second signal pathis configured to amplify and filter uplink signals in one or more of asecond uplink band or a third uplink band that is spectrally adjacent tothe second uplink band; and a downlink signal path communicativelycoupled between the first triplexer and the second triplexer, thedownlink signal path including one or more amplifiers and one or moreband pass filters configured to amplify and filter downlink signals inone or more of a first downlink band, a second downlink band or a thirddownlink band, wherein the first downlink band, the second downlink bandand the third downlink band are spectrally adjacent bands.

Example 2 includes the signal booster of Example 1, further comprising acontroller operable to perform network protection by adjusting an uplinkgain or a noise power for the first uplink band in the first uplinksignal path, or for the second uplink band and the third uplink band inthe second uplink signal path.

Example 3 includes the signal booster of any of Examples 1 to 2, whereinthe uplink gain or noise power for the first uplink band is controlledindependent of the uplink gain or noise power for the second uplink bandand the third uplink band.

Example 4 includes the signal booster of any of Examples 1 to 3,wherein: the uplink gain or the noise power is adjusted for the firstuplink band using control information associated with a receiveddownlink signal in the first downlink band; or the uplink gain or thenoise power is adjusted for the second uplink band and the third uplinkband using control information associated with a received downlinksignal in the second downlink band or the third downlink band.

Example 5 includes the signal booster of any of Examples 1 to 4, whereinthe control information associated with the received downlink signal inthe first downlink band, the second downlink band or the third downlinkband includes a booster station coupling loss (BSCL) or a receivedsignal strength indication (RSSI).

Example 6 includes the signal booster of any of Examples 1 to 5, whereinthe downlink signal path further comprises a signal detector operable todetect the control information associated with the received downlinksignal in one or more of the first downlink band, the second downlinkband or the third downlink band.

Example 7 includes the signal booster of any of Examples 1 to 6, whereinthe signal detector is communicatively coupled to a first switchableband pass filter, a second switchable band pass filter and a thirdswitchable band pass filter, and a given switchable band pass filter isutilized for one or more of the first downlink band, the second downlinkband or the third downlink band.

Example 8 includes the signal booster of any of Examples 1 to 7, furthercomprising a pass through signal path on the downlink signal path to thesignal detector that bypasses the first switchable band pass filter, thesecond switchable band pass filter and the third switchable band passfilter, wherein the signal detector is configured to measure a signalpower level for a combined downlink signal path.

Example 9 includes the signal booster of any of Examples 1 to 8, whereinthe first uplink band is band 12 (B12), the second uplink band is band13 (B13), and the third uplink band is band 14 (B14), wherein B12corresponds to a frequency range of 699 megahertz (MHz) to 716 MHz in anuplink, B13 corresponds to a frequency range of 777 MHz to 787 MHz inthe uplink, and B14 corresponds to a frequency range of 788 MHz to 798MHz in the uplink.

Example 10 includes the signal booster of any of Examples 1 to 9,wherein the first downlink band is band 12 (B12), the second downlinkband is band 13 (B13), and the third downlink band is band 14 (B14),wherein B12 corresponds to a frequency range of 729 megahertz (MHz) to746 MHz in a downlink, B13 corresponds to a frequency range of 746 MHzto 756 MHz in the downlink, and B14 corresponds to a frequency range of758 MHz to 768 MHz in the downlink.

Example 11 includes the signal booster of any of Examples 1 to 10,wherein the signal booster is a cellular signal booster configured toamplify cellular signals and retransmit amplified cellular signals.

Example 12 includes the signal booster of any of Examples 1 to 11,further comprising: an inside antenna communicatively coupled to thefirst triplexer; and an outside antenna communicatively coupled to thesecond triplexer.

Example 13 includes the signal booster of any of Examples 1 to 12,wherein the inside antenna is configured to: receive uplink signals froma mobile device; or transmit amplified and filtered downlink signals tothe mobile device.

Example 14 includes the signal booster of any of Examples 1 to 13,wherein the outside antenna is configured to: receive downlink signalsfrom a base station; or transmit amplified and filtered uplink signalsto the base station.

Example 15 includes a signal booster, comprising: a first triplexer; asecond triplexer; and a downlink signal path communicatively coupledbetween the first triplexer and the second triplexer, the downlinksignal path including one or more amplifiers and one or more band passfilters configured to amplify and filter downlink signals in one or moreof a first downlink band, a second downlink band or a third downlinkband, wherein the first downlink band, the second downlink band and thethird downlink band are spectrally adjacent bands.

Example 16 includes the signal booster of Example 15, furthercomprising: a first uplink signal path communicatively coupled betweenthe first triplexer and the second triplexer, the first uplink signalpath including one or more amplifiers and one or more band pass filters,and the first signal path is configured to amplify and filter uplinksignals in a first uplink band; and a second uplink signal pathcommunicatively coupled between the first triplexer and the secondtriplexer, the second uplink signal path including one or moreamplifiers and one or more band pass filters, and the second signal pathis configured to amplify and filter uplink signals in one or more of asecond uplink band or a third uplink band that is spectrally adjacent tothe second uplink band.

Example 17 includes the signal booster of any of Examples 15 to 16,further comprising a controller operable to perform network protectionby adjusting an uplink gain or a noise power for the first uplink bandin the first uplink signal path, or for the second uplink band and thethird uplink band in the second uplink signal path.

Example 18 includes the signal booster of any of Examples 15 to 17,wherein: the uplink gain or the noise power is adjusted for the firstuplink band using control information associated with a receiveddownlink signal in the first downlink band; or the uplink gain or thenoise power is adjusted for the second uplink band and the third uplinkband using control information associated with a received downlinksignal in the second downlink band or the third downlink band.

Example 19 includes the signal booster of any of Examples 15 to 18,wherein the downlink signal path further comprises a signal detectoroperable to detect the control information associated with the receiveddownlink signal in one or more of the first downlink band, the seconddownlink band or the third downlink band.

Example 20 includes the signal booster of any of Examples 15 to 19,wherein the signal detector is communicatively coupled to a firstswitchable band pass filter, a second switchable band pass filter and athird switchable band pass filter, and a given switchable band passfilter is utilized for one or more of the first downlink band, thesecond downlink band or the third downlink band.

Example 21 includes the signal booster of any of Examples 15 to 20,further comprising a pass through signal path on the downlink signalpath to the signal detector that bypasses the first switchable band passfilter, the second switchable band pass filter and the third switchableband pass filter, wherein the signal detector is configured to measure asignal power level for a combined downlink signal path.

Example 22 includes a cellular signal booster, comprising: a downlinkcellular signal path configured to amplify and filter a downlinkcellular signal received in a first downlink band, a second downlinkband or a third downlink band, wherein the first downlink band, thesecond downlink band and the third downlink band are spectrally adjacentbands; and a controller operable to perform network protection byadjusting an uplink gain or noise power for a first uplink band in afirst uplink cellular signal path, or for a second uplink band and athird uplink band in a second uplink cellular signal path, wherein thesecond uplink band is spectrally adjacent to the third uplink band, andthe uplink gain or noise power is adjusted in the first uplink cellularpath or the second uplink cellular path using control informationassociated with the downlink cellular signal received in one or more ofthe first downlink band, the second downlink band or the third downlinkband.

Example 23 includes the cellular signal booster of Example 22, whereinthe downlink cellular signal path further comprises a signal detectoroperable to detect the control information associated with the downlinkcellular signal received in the first downlink band, the second downlinkband or the third downlink band.

Example 24 includes the cellular signal booster of any of Examples 22 to23, wherein the control information associated with the downlinkcellular signal received in the first downlink band, the second downlinkband or the third downlink band includes a booster station coupling loss(BSCL) or a received signal strength indication (RSSI).

Example 25 includes the cellular signal booster of any of Examples 22 to24, wherein the downlink cellular signal path includes a pass throughsignal path to a signal detector on the downlink cellular signal path,wherein the pass through signal path bypasses a first switchable bandpass filter communicatively coupled to the signal detector, a secondswitchable band pass filter communicatively coupled to the signaldetector, and a third switchable band pass filter communicativelycoupled to the signal detector, wherein the signal detector isconfigured to measure a signal power level for a combined downlinksignal path.

Example 26 includes a signal booster, comprising: a first triplexer; asecond triplexer; a first direction signal path communicatively coupledbetween the first triplexer and the second triplexer, the firstdirection signal path including one or more amplifiers and one or moreband pass filters, and the first direction signal path is configured toamplify and filter first direction signals in one or more firstdirection bands, wherein the one or more first direction bands arespectrally adjacent bands; and a second direction signal pathcommunicatively coupled between the first triplexer and the secondtriplexer, the second direction signal path including one or moreamplifiers and one or more band pass filters configured to amplify andfilter second direction signals in one or more second direction bands,wherein the one or more second direction bands are spectrally adjacentbands.

Example 27 includes the signal booster of Example 26, further comprisinga controller operable to perform network protection by adjusting a gainor a noise power for the one or more first direction bands in the firstdirection signal path.

Example 28 includes the signal booster of any of Examples 26 to 27,wherein the gain or the noise power is adjusted for the one or morefirst direction bands in the first direction signal path based oncontrol information associated with received second direction signals inone or more second direction bands.

Example 29 includes the signal booster of any of Examples 26 to 28,wherein the control information associated with the received seconddirection signals in one or more second direction bands includes abooster station coupling loss (BSCL) or a received signal strengthindication (RSSI).

Example 30 includes the signal booster of any of Examples 26 to 29,wherein the second direction signal path further comprises a signaldetector operable to detect the control information associated with thereceived second direction signals in one or more second direction bands.

Example 31 includes a triplexer in a signal booster, the triplexercomprising: one or more first direction filters configured to filterfirst direction signals in one or more first direction bands, whereinthe one or more first direction bands are spectrally adjacent bands; andone or more second direction filters configured to filter seconddirection signals in one or more second direction bands, wherein the oneor more second direction bands are spectrally adjacent bands, whereinone of the first direction filters or the second direction filters isconfigured to pass signals to a combined signal path for threespectrally adjacent bands.

Example 32 includes the triplexer of Example 31, further comprising: acommon port communicatively coupled to an antenna; a first portcommunicatively coupled to a first direction signal path; and a secondport communicatively coupled to a second direction signal path.

Example 33 includes the triplexer of any of Examples 31 to 32, wherein:the first direction signals include uplink signals or downlink signals;and the second direction signals include uplink signals or downlinksignals.

Example 34 includes the triplexer of any of Examples 31 to 33, whereinthe one or more first direction bands include at least one of band 12(B12), band 13 (B13), or band 14 (B14), wherein B12 corresponds to afrequency range of 699 megahertz (MHz) to 716 MHz in a first direction,B13 corresponds to a frequency range of 777 MHz to 787 MHz in the firstdirection, and B14 corresponds to a frequency range of 788 MHz to 798MHz in the first direction.

Example 35 includes the triplexer of any of Examples 31 to 34, whereinthe one or more second direction bands include at least one of band 12(B12), band 13 (B13), or band 14 (B14), wherein B12 corresponds to afrequency range of 729 megahertz (MHz) to 746 MHz in a second direction,B13 corresponds to a frequency range of 746 MHz to 756 MHz in the seconddirection, and B14 corresponds to a frequency range of 758 MHz to 768MHz in the second direction.

Example 36 includes a signal booster, comprising: a first multibandfilter that includes a first first-direction port and a firstsecond-direction port; a second multiband filter that includes a secondfirst-direction port and a second second-direction port; one or morefirst direction signal paths communicatively coupled between the firstfirst-direction port in the first multiband filter and the secondfirst-direction port in the second multiband filter; and one or moresecond direction signal paths communicatively coupled between the firstsecond-direction port in the first multiband filter and the secondsecond-direction port in the second multiband filter.

Example 37 includes the signal booster of Example 36, wherein the one ormore first direction signal paths include one or more amplifiers and oneor more band pass filters, and the one or more first direction signalpaths are configured to amplify and filter first direction signals inone or more first direction bands, wherein the one or more firstdirection bands are spectrally adjacent bands.

Example 38 includes the signal booster of any of Examples 36 to 37,wherein the one or more second direction signal paths include one ormore amplifiers and one or more band pass filters, and the one or moresecond direction signal paths are configured to amplify and filtersecond direction signals in one or more second direction bands, whereinthe one or more second direction bands are spectrally adjacent bands.

Example 39 includes the signal booster of any of Examples 36 to 38,wherein: the one or more first direction signal paths include uplinksignal paths or downlink signal paths; and the one or more seconddirection signal paths include uplink signal paths or downlink signalpaths.

Example 40 includes the signal booster of any of Examples 36 to 39,wherein each of the one or more first direction signal paths areassociated with a selected filter within the first multiband filter anda selected filter within the second multiband filter.

Example 41 includes the signal booster of any of Examples 36 to 40,wherein the first multiband filter and the second multiband filter eachinclude four or more filters, wherein each filter is associated with thefirst direction signal path or the second direction signal path.

Example 42 includes the signal booster of any of Examples 36 to 41,wherein: the first first-direction port in the first multiband filter isa first uplink port; the first second-direction port in the firstmultiband filter is a first downlink port; the second first-directionport in the second multiband filter is a second uplink port; and thesecond second-direction port second multiband filter is a seconddownlink port.

Example 43 includes a repeater, comprising: a first multiband filter; asecond multiband filter; one or more first-direction signal pathscommunicatively coupled between the first multiband filter and thesecond multi-band filter, wherein at least one of the one or morefirst-direction signal paths are configured to amplify and filtersignals in two or more spectrally adjacent bands; and one or moresecond-direction signal paths communicatively coupled between the firstmultiband filter and the second multi-band filter, wherein at least oneof the one or more second-direction signal paths are configured toamplify and filter signals in two or more spectrally adjacent bands.

Example 44 includes the repeater of Example 43, wherein the one or morefirst-direction signal paths includes: a first-direction band 12 (B12)and a first-direction 600 megahertz (MHz) band combined signal path; anda first-direction band 13 (B13) signal path.

Example 45 includes the repeater of any of Examples 43 to 44, whereinthe one or more first-direction signal paths includes: a first-directionband 12 (B12) and a first-direction 600 megahertz (MHz) band combinedsignal path; and a first-direction band 13 (B13) and band 14 (B14)combined signal path.

Example 46 includes the repeater of any of Examples 43 to 45, whereinthe one or more second-direction signal paths includes: asecond-direction band 12 (B12) and band 13 (B13) and band 14 (B14)combined signal path; and a second-direction 600 megahertz (MHz) bandsignal path.

Example 47 includes the repeater of any of Examples 43 to 46, whereinthe one or more second-direction signal paths includes: asecond-direction band 12 (B12) and band 13 (B13) combined signal path;and a second-direction 600 megahertz (MHz) band signal path.

Example 48 includes the repeater of any of Examples 43 to 47, whereinB12 corresponds to a frequency range of 699 MHz to 716 MHz in thefirst-direction, B13 corresponds to a frequency range of 777 MHz to 787MHz in the first-direction and B14 corresponds to a frequency range of788 MHz to 798 MHz in the first-direction, wherein the first-directionis an uplink.

Example 49 includes the repeater of any of Examples 43 to 48, whereinB12 corresponds to a frequency range of 729 MHz to 746 MHz in thesecond-direction, B13 corresponds to a frequency range of 746 MHz to 756MHz in the second-direction and B14 corresponds to a frequency range of758 MHz to 768 MHz in the second-direction, wherein the second-directionis a downlink.

Example 50 includes a repeater, comprising: a first multiband filter; asecond multiband filter; one or more first-direction signal pathscommunicatively coupled between the first multiband filter and thesecond multi-band filter, wherein the one or more first-direction signalpaths are configured to amplify and filter signals; and one or moresecond-direction signal paths communicatively coupled between the firstmultiband filter and the second multi-band filter, wherein at least oneof the one or more second-direction signal paths are configured toamplify and filter two or more signals in one or more spectrallyadjacent bands or one or more spectrally overlapping bands, wherein oneor more of the first-direction signal paths or the second-directionsignal paths include switchable bandpass filters or switchablechannelized bandpass filters for one or more spectrally adjacent bandsor one or more spectrally overlapping bands.

Example 51 includes the repeater of Example 50, wherein the one or morefirst-direction signal paths and the one or more second-direction signalpaths are controlled separately by a controller in the repeater.

Example 52 includes the repeater of any of Examples 50 to 51, whereinthe one or more first-direction signal paths includes: a first-directionband 12 (B12) signal path; and a first-direction band 13 (B13) signalpath.

Example 53 includes the repeater of any of Examples 50 to 52, whereinthe first-direction B12 signal path includes a first-direction B12switchable bandpass filter and a first-direction B17 switchable bandpassfilter, wherein B12 corresponds to a frequency range of 699 MHz to 716MHz in the first-direction and B17 corresponds to a frequency range of704 MHz to 716 MHz in the first-direction, wherein the first-directionis an uplink.

Example 54 includes the repeater of any of Examples 50 to 53, whereinthe first-direction B13 signal path corresponds to a frequency range of777 MHz to 787 MHz, wherein the first-direction is an uplink.

Example 55 includes the repeater of any of Examples 50 to 54, whereinthe one or more second-direction signal paths includes asecond-direction band 12 (B12) and band 13 (B13) combined signal path.

Example 56 includes the repeater of any of Examples 50 to 55, whereinthe second-direction B12 and B13 combined signal path includes one ormore of: a second-direction B12 switchable bandpass filter, asecond-direction B13 switchable bandpass filter, a second-directionB12/B13 switchable bandpass filter or a second-direction B13/band 17(B17) switchable bandpass filter.

Example 57 includes the repeater of any of Examples 50 to 56, whereinB12 corresponds to a frequency range of 729 megahertz (MHz) to 746 MHzin the second-direction, B13 corresponds to a frequency range of 746 MHzto 756 MHz in the second-direction and B17 corresponds to a frequencyrange of 734 MHz to 746 MHz in the second-direction, wherein thesecond-direction is a downlink.

Example 58 includes a repeater, comprising: a first multiband filter; asecond multiband filter; one or more first-direction signal pathscommunicatively coupled between the first multiband filter and thesecond multi-band filter, wherein the one or more first-direction signalpaths are configured to amplify and filter signals; and one or moresecond-direction signal paths communicatively coupled between the firstmultiband filter and the second multi-band filter, wherein the one ormore second-direction signal paths are configured to amplify and filtersignals, wherein one or more of the first-direction signal paths or thesecond-direction signal paths include one or more of: a switchablewideband bandpass filter, a switchable channelized bandpass filter or achannelized bandpass filter.

Example 59 includes the repeater of Example 58, wherein the one or moresecond-direction signal paths are configured to amplify and filtersignals in one or more spectrally adjacent bands.

Example 60 includes the repeater of any of Examples 58 to 59, whereinthe one or more first-direction signal paths includes one or more of: afirst-direction band 5 (B5) signal path; a first-direction band 12 (B12)signal path; or a first-direction band 13 (B13) signal path.

Example 61 includes the repeater of any of Examples 58 to 60, whereinthe first-direction B5 signal path includes a first-direction B5switchable wideband bandpass filter, a first-direction B5 switchablechannelized bandpass filter that corresponds to a first channel of thefirst-direction B5, and a first-direction B5 channelized bandpass filterthat corresponds to a second channel of the first-direction B5, whereinB5 corresponds to a frequency range of 824 megahertz (MHz) to 849 MHz inthe first-direction, wherein the first-direction is an uplink.

Example 62 includes the repeater of any of Examples 58 to 61, whereinthe first-direction B5 signal path includes a first splitter and a firstcombiner communicatively coupled to: a first-direction B5 switchablewideband bandpass filter, a first-direction B5 switchable channelizedbandpass filter that corresponds to a first channel of thefirst-direction B5, and a first-direction B5 channelized bandpass filterthat corresponds to a second channel of the first-direction B5.

Example 63 includes the repeater of any of Examples 58 to 62, wherein:the first-direction B12 signal path includes a first-direction B12switchable wideband bandpass filter and a first-direction B12 switchablechannelized bandpass filter; and the first-direction B13 signal pathincludes a first-direction B13 switchable wideband bandpass filter and afirst-direction B13 switchable channelized bandpass filter, wherein B12corresponds to a frequency range of 699 megahertz (MHz) to 716 MHz inthe first-direction and B13 corresponds to a frequency range of 777 MHzto 787 MHz in the first-direction, wherein the first-direction is anuplink

Example 64 includes the repeater of any of Examples 58 to 63, whereinthe one or more second-direction signal paths includes one or more of: asecond-direction band 5 (B5) signal path; or a second-direction band 12(B12) and band 13 (B13) combined signal path.

Example 65 includes the repeater of any of Examples 58 to 64, whereinthe second-direction B5 signal path includes a second-direction B5switchable wideband bandpass filter, a second-direction B5 switchablechannelized bandpass filter that corresponds to a first channel of thesecond-direction B5, and a second-direction B5 channelized bandpassfilter that corresponds to a second channel of the second-direction B5,wherein B5 corresponds to a frequency range of 869 megahertz (MHz) to894 MHz in the second-direction, wherein the second-direction is adownlink.

Example 66 includes the repeater of any of Examples 58 to 65, whereinthe second-direction B5 signal path includes a second splitter and asecond combiner communicatively coupled to: a second-direction B5switchable wideband bandpass filter, a second-direction B5 switchablechannelized bandpass filter that corresponds to a first channel of thesecond-direction B5, and a second-direction B5 channelized bandpassfilter that corresponds to a second channel of the second-direction B5.

Example 67 includes the repeater of any of Examples 58 to 66, whereinthe second-direction B12 and B13 combined signal path includes asecond-direction B12/B13 switchable wideband pass filter, asecond-direction B12 switchable channelized bandpass filter and asecond-direction B13 channelized bandpass filter, wherein B12corresponds to a frequency range of 729 megahertz (MHz) to 746 MHz inthe second-direction and B13 corresponds to a frequency range of 746 MHzto 756 MHz in the second-direction, wherein the second-direction is adownlink.

Example 68 includes the repeater of any of Examples 58 to 67, whereinthe second-direction B12 and B13 combined signal path includes a secondsplitter and a second combiner communicatively coupled to: asecond-direction B12/B13 switchable wideband pass filter, asecond-direction B12 switchable channelized bandpass filter and asecond-direction B13 channelized bandpass filter.

Various techniques, or certain aspects or portions thereof, can take theform of program code (i.e., instructions) embodied in tangible media,such as floppy diskettes, compact disc-read-only memory (CD-ROMs), harddrives, non-transitory computer readable storage medium, or any othermachine-readable storage medium wherein, when the program code is loadedinto and executed by a machine, such as a computer, the machine becomesan apparatus for practicing the various techniques. Circuitry caninclude hardware, firmware, program code, executable code, computerinstructions, and/or software. A non-transitory computer readablestorage medium can be a computer readable storage medium that does notinclude signal. In the case of program code execution on programmablecomputers, the computing device can include a processor, a storagemedium readable by the processor (including volatile and non-volatilememory and/or storage elements), at least one input device, and at leastone output device. The volatile and non-volatile memory and/or storageelements can be a random-access memory (RAM), erasable programmable readonly memory (EPROM), flash drive, optical drive, magnetic hard drive,solid state drive, or other medium for storing electronic data. One ormore programs that can implement or utilize the various techniquesdescribed herein can use an application programming interface (API),reusable controls, and the like. Such programs can be implemented in ahigh level procedural or object oriented programming language tocommunicate with a computer system. However, the program(s) can beimplemented in assembly or machine language, if desired. In any case,the language can be a compiled or interpreted language, and combinedwith hardware implementations.

As used herein, the term processor can include general purposeprocessors, specialized processors such as VLSI, FPGAs, or other typesof specialized processors, as well as base band processors used intransceivers to send, receive, and process wireless communications.

It should be understood that many of the functional units described inthis specification have been labeled as modules, in order to moreparticularly emphasize their implementation independence. For example, amodule can be implemented as a hardware circuit comprising customvery-large-scale integration (VLSI) circuits or gate arrays,off-the-shelf semiconductors such as logic chips, transistors, or otherdiscrete components. A module can also be implemented in programmablehardware devices such as field programmable gate arrays, programmablearray logic, programmable logic devices or the like.

In one example, multiple hardware circuits or multiple processors can beused to implement the functional units described in this specification.For example, a first hardware circuit or a first processor can be usedto perform processing operations and a second hardware circuit or asecond processor (e.g., a transceiver or a baseband processor) can beused to communicate with other entities. The first hardware circuit andthe second hardware circuit can be incorporated into a single hardwarecircuit, or alternatively, the first hardware circuit and the secondhardware circuit can be separate hardware circuits.

Modules can also be implemented in software for execution by varioustypes of processors. An identified module of executable code can, forinstance, comprise one or more physical or logical blocks of computerinstructions, which can, for instance, be organized as an object,procedure, or function. Nevertheless, the executables of an identifiedmodule need not be physically located together, but can comprisedisparate instructions stored in different locations which, when joinedlogically together, comprise the module and achieve the stated purposefor the module.

Indeed, a module of executable code can be a single instruction, or manyinstructions, and can even be distributed over several different codesegments, among different programs, and across several memory devices.Similarly, operational data can be identified and illustrated hereinwithin modules, and can be embodied in any suitable form and organizedwithin any suitable type of data structure. The operational data can becollected as a single data set, or can be distributed over differentlocations including over different storage devices, and can exist, atleast partially, merely as electronic signals on a system or network.The modules can be passive or active, including agents operable toperform desired functions.

Reference throughout this specification to “an example” or “exemplary”means that a particular feature, structure, or characteristic describedin connection with the example is included in at least one embodiment ofthe present invention. Thus, appearances of the phrases “in an example”or the word “exemplary” in various places throughout this specificationare not necessarily all referring to the same embodiment.

As used herein, a plurality of items, structural elements, compositionalelements, and/or materials can be presented in a common list forconvenience.

However, these lists should be construed as though each member of thelist is individually identified as a separate and unique member. Thus,no individual member of such list should be construed as a de factoequivalent of any other member of the same list solely based on theirpresentation in a common group without indications to the contrary. Inaddition, various embodiments and example of the present invention canbe referred to herein along with alternatives for the various componentsthereof. It is understood that such embodiments, examples, andalternatives are not to be construed as defacto equivalents of oneanother, but are to be considered as separate and autonomousrepresentations of the present invention.

Furthermore, the described features, structures, or characteristics canbe combined in any suitable manner in one or more embodiments. In thefollowing description, numerous specific details are provided, such asexamples of layouts, distances, network examples, etc., to provide athorough understanding of embodiments of the invention. One skilled inthe relevant art will recognize, however, that the invention can bepracticed without one or more of the specific details, or with othermethods, components, layouts, etc. In other instances, well-knownstructures, materials, or operations are not shown or described indetail to avoid obscuring aspects of the invention.

While the forgoing examples are illustrative of the principles of thepresent invention in one or more particular applications, it will beapparent to those of ordinary skill in the art that numerousmodifications in form, usage and details of implementation can be madewithout the exercise of inventive faculty, and without departing fromthe principles and concepts of the invention. Accordingly, it is notintended that the invention be limited, except as by the claims setforth below.

What is claimed is:
 1. A signal booster, comprising: a first triplexer;a second triplexer; a first uplink signal path communicatively coupledbetween the first triplexer and the second triplexer, the first uplinksignal path including one or more amplifiers and one or more band passfilters, and the first signal path is configured to amplify and filteruplink signals in a first uplink band; a second uplink signal pathcommunicatively coupled between the first triplexer and the secondtriplexer, the second uplink signal path including one or moreamplifiers and one or more band pass filters, and the second signal pathis configured to amplify and filter uplink signals in a second uplinkband and a third uplink band that is spectrally adjacent to the seconduplink band; and a downlink signal path communicatively coupled betweenthe first triplexer and the second triplexer, the downlink signal pathincluding one or more amplifiers and one or more band pass filtersconfigured to amplify and filter downlink signals in a first downlinkband, a second downlink band and a third downlink band, wherein thefirst downlink band, the second downlink band and the third downlinkband are spectrally adjacent bands.
 2. The signal booster of claim 1,further comprising a controller operable to perform network protectionby adjusting an uplink gain or a noise power for the first uplink bandin the first uplink signal path, or for the second uplink band and thethird uplink band in the second uplink signal path.
 3. The signalbooster of claim 2, wherein the uplink gain or noise power for the firstuplink band is controlled independent of the uplink gain or noise powerfor the second uplink band and the third uplink band.
 4. The signalbooster of claim 2, wherein: the uplink gain or the noise power isadjusted for the first uplink band using control information associatedwith a received downlink signal in the first downlink band; or theuplink gain or the noise power is adjusted for the second uplink bandand the third uplink band using control information associated with areceived downlink signal in the second downlink band or the thirddownlink band.
 5. The signal booster of claim 4, wherein the controlinformation associated with the received downlink signal in the firstdownlink band, the second downlink band or the third downlink bandincludes a booster station coupling loss (BSCL) or a received signalstrength indication (RSSI).
 6. The signal booster of claim 4, whereinthe downlink signal path further comprises a signal detector operable todetect the control information associated with the received downlinksignal in one or more of the first downlink band, the second downlinkband or the third downlink band.
 7. The signal booster of claim 6,wherein the signal detector is communicatively coupled to a firstswitchable band pass filter, a second switchable band pass filter and athird switchable band pass filter, and a given switchable band passfilter is utilized for one or more of the first downlink band, thesecond downlink band or the third downlink band.
 8. The signal boosterof claim 7, further comprising a pass through signal path on thedownlink signal path to the signal detector that bypasses the firstswitchable band pass filter, the second switchable band pass filter andthe third switchable band pass filter, wherein the signal detector isconfigured to measure a signal power level for a combined downlinksignal path.
 9. The signal booster of claim 1, wherein the first uplinkband is band 12 (B12), the second uplink band is band 13 (B13), and thethird uplink band is band 14 (B14), wherein B12 corresponds to afrequency range of 699 megahertz (MHz) to 716 MHz in an uplink, B13corresponds to a frequency range of 777 MHz to 787 MHz in the uplink,and B14 corresponds to a frequency range of 788 MHz to 798 MHz in theuplink.
 10. The signal booster of claim 1, wherein the first downlinkband is band 12 (B12), the second downlink band is band 13 (B13), andthe third downlink band is band 14 (B14), wherein B12 corresponds to afrequency range of 729 megahertz (MHz) to 746 MHz in a downlink, B13corresponds to a frequency range of 746 MHz to 756 MHz in the downlink,and B14 corresponds to a frequency range of 758 MHz to 768 MHz in thedownlink.
 11. The signal booster of claim 1, wherein the signal boosteris a cellular signal booster configured to amplify cellular signals andretransmit amplified cellular signals.
 12. The signal booster of claim1, further comprising: an inside antenna communicatively coupled to thefirst triplexer; and an outside antenna communicatively coupled to thesecond triplexer.
 13. The signal booster of claim 12, wherein the insideantenna is configured to: receive uplink signals from a mobile device;or transmit amplified and filtered downlink signals to the mobiledevice.
 14. The signal booster of claim 12, wherein the outside antennais configured to: receive downlink signals from a base station; ortransmit amplified and filtered uplink signals to the base station. 15.A signal booster, comprising: a first triplexer; a second triplexer; anda downlink signal path communicatively coupled between the firsttriplexer and the second triplexer, the downlink signal path includingone or more amplifiers and one or more band pass filters configured toamplify and filter downlink signals in a first downlink band, a seconddownlink band and a third downlink band, wherein the first downlinkband, the second downlink band and the third downlink band arespectrally adjacent bands, and the downlink signal path is a combinedsignal path for the first downlink band, the second downlink band andthe third downlink band.
 16. The signal booster of claim 15, furthercomprising: a first uplink signal path communicatively coupled betweenthe first triplexer and the second triplexer, the first uplink signalpath including one or more amplifiers and one or more band pass filters,and the first signal path is configured to amplify and filter uplinksignals in a first uplink band; and a second uplink signal pathcommunicatively coupled between the first triplexer and the secondtriplexer, the second uplink signal path including one or moreamplifiers and one or more band pass filters, and the second signal pathis configured to amplify and filter uplink signals in a second uplinkband and a third uplink band that is spectrally adjacent to the seconduplink band.
 17. The signal booster of claim 16, further comprising acontroller operable to perform network protection by adjusting an uplinkgain or a noise power for the first uplink band in the first uplinksignal path, or for the second uplink band and the third uplink band inthe second uplink signal path.
 18. The signal booster of claim 17,wherein: the uplink gain or the noise power is adjusted for the firstuplink band using control information associated with a receiveddownlink signal in the first downlink band; or the uplink gain or thenoise power is adjusted for the second uplink band and the third uplinkband using control information associated with a received downlinksignal in the second downlink band or the third downlink band.
 19. Thesignal booster of claim 18, wherein the downlink signal path furthercomprises a signal detector operable to detect the control informationassociated with the received downlink signal in one or more of the firstdownlink band, the second downlink band or the third downlink band. 20.The signal booster of claim 19, wherein the signal detector iscommunicatively coupled to a first switchable band pass filter, a secondswitchable band pass filter and a third switchable band pass filter, anda given switchable band pass filter is utilized for one or more of thefirst downlink band, the second downlink band or the third downlinkband.
 21. The signal booster of claim 20, further comprising a passthrough signal path on the downlink signal path to the signal detectorthat bypasses the first switchable band pass filter, the secondswitchable band pass filter and the third switchable band pass filter,wherein the signal detector is configured to measure a signal powerlevel for a combined downlink signal path.